Considering the fact that Shazam! is set in Philadelphia, there's no way it would have missed out referencing the best-known Philly film franchise there is. Rocky's anthem, "Eye of the Tiger," is played at one point during the film and, after a day of misadventures, Freddy and Billy wind up on the steps of the Philadelphia Museum of Art to admire the view. Billy notes that he now understands why Rocky wanted to get up the stairs (and audience members over the age of 25 will suddenly feel 100-years-old).